Terminal pullback assembly tool

Abstract

The present application relates to the technical field of wire copper foil, especially to a terminal pull-back assembly tool, which comprises a core test component, an electrical component box and a state indicating device, and the left and right sides of a main cavity block are respectively provided with locking mechanisms; the motion component part comprises a moving mechanism group and a fixed mechanism group, the moving mechanism group comprises a sliding plate and a cylinder connecting plate, the cylinder connecting plate is arranged above the sliding plate in parallel, the sliding plate and the cylinder connecting plate are connected through a sliding table cylinder, a probe fixing plate is arranged above the cylinder connecting plate, a transition plate is arranged in front of the cylinder connecting plate, a fine probe is arranged on the probe fixing plate, a probe piece is arranged on the front surface of the transition plate, and the tail of the probe piece is connected with a connecting screw through a probe piece channel arranged on the transition plate; the head of the probe piece is adapted to the position of the connector plastic shell; the effect that whether the terminal is inserted in place can be accurately detected through the device is achieved.

Description

Technical Field

[0001] This invention relates to the technical field of copper foil wrapping of wires, and more particularly to a terminal pull-back assembly fixture. Background Technology

[0002] Improper insertion of wiring harness terminals has always been a quality defect in the wiring harness industry. Improper insertion leads to poor contact, unstable electrical signal transmission, and even burnout of equipment circuits. Therefore, improper terminal insertion and removal is a major issue affecting the quality of automotive wiring harness front-end products. Incorrect insertion, missing insertion, improper insertion and removal, and defective terminals occur frequently. Currently, the common method for checking terminal insertion is to manually pull the terminal backward; if it cannot be pulled out, it is considered properly inserted. The biggest drawback of this method is that it relies on manual inspection, resulting in poor reliability, low efficiency, and frequent instances where the terminal, although not pulled out, has internal terminal connections that are partially detached, which is mistakenly considered acceptable by the operator. Summary of the Invention

[0003] The purpose of this invention is to provide a terminal pull-back assembly fixture that addresses the shortcomings of existing technologies, enabling accurate detection of whether the terminal is properly inserted.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A terminal pull-back assembly fixture includes a core test component, an electrical component box, and a status indicator device. The core test component is positioned above the electrical component box. The core test component includes a product fixing part, a motion component part, and a core test component housing. The product fixing part is located at the front end of the core test component housing, and the core test component housing is positioned above the motion component part. The product fixing part includes a main cavity block and a connector housing. The main cavity block has a main groove adapted to the shape of the connector housing. Locking mechanisms are respectively provided on the left and right sides of the main cavity block. The motion component part includes a moving mechanism assembly and a stationary mechanism assembly. The moving mechanism assembly includes a sliding plate and a cylinder connecting plate. The cylinder connecting plate is arranged parallel above the sliding plate. The sliding plate and the cylinder connecting plate are connected by a slide cylinder. A probe fixing plate is located above the cylinder connecting plate, and a transition plate is located in front of the cylinder connecting plate. The probe fixing plate is provided with a precision probe, the switching tip of which faces the transition plate. The switching tip of the precision probe is connected to a connecting screw on the back of the transition plate. The front of the transition plate is provided with a probe piece, the tail of which passes through a probe piece channel on the transition plate and is connected to the connecting screw. The head of the probe piece is adapted to the position of the connector housing. A spring baffle is also provided at the tail end of the sliding plate. The sliding plate is fixedly connected to the housing of the core test component. The fixed mechanism assembly is located below the moving mechanism assembly. The fixed mechanism assembly includes a base plate and a guide rail mechanism. The base plate is connected to the sliding plate through the guide rail mechanism. A moving slot is opened at the tail end of the base plate. The moving slot is adapted to the shape of the spring baffle. A spring limiting member is fixedly embedded on the surface of the base plate at the front end of the moving slot. A main spring is provided between the spring limiting member and the spring baffle.

[0006] Furthermore, the locking mechanism passes through the secondary grooves located on the left and right sides of the main cavity block and acts into the main groove; a cavity block sensing probe is also provided below the main cavity block.

[0007] Furthermore, a probe spring is provided between the probe piece and the transition plate, a transition plate adjustment mechanism is provided on the back of the transition plate, and a probe fixing plate adjustment device is provided on the probe fixing plate; the probe piece channel is configured as a rectangular fixing groove.

[0008] Furthermore, the spring baffle has a T-shaped structure.

[0009] Furthermore, a limiting plate is provided on one side of the sliding plate, and a limiting block is provided on the surface of the substrate near the edge. The limiting block is fixed to the substrate by a limiting adjustment mechanism, and the positions of the limiting block and the limiting plate are adapted to each other.

[0010] Furthermore, an optical fiber sensor is also provided on the bottom surface of the substrate near the edge. The optical fiber sensor is fixed to the substrate by an optical fiber sensor adjustment mechanism, and the position of the optical fiber sensor is adapted to the position of the spring limiting member.

[0011] Furthermore, a pin plate is provided at the tail end of the substrate, and a length adjustment screw is provided on the pin plate.

[0012] Furthermore, the status indicator includes an insertion confirmation indicator, a pull-out confirmation indicator, and an alarm indicator.

[0013] Furthermore, the electrical component box is also equipped with a reset device.

[0014] Furthermore, a dotting device is also provided below the main cavity block.

[0015] The technical solution of this invention can achieve the following technical effects:

[0016] The system comprises a core test component, an electrical component box, and a status indicator. The core test component is positioned above the electrical component box. The core test component includes a product fixing part, a motion component part, and a core test component housing. The product fixing part is located at the front end of the core test component housing, and the core test component housing is positioned above the motion component part. The product fixing part includes a main cavity block and a connector housing. The main cavity block has a main groove that matches the shape of the connector housing. Locking mechanisms are provided on the left and right sides of the main cavity block. The motion component part includes a moving mechanism assembly and a stationary mechanism assembly. The moving mechanism assembly includes a sliding plate and a cylinder connecting plate. The cylinder connecting plate is arranged parallel above the sliding plate. The sliding plate and the cylinder connecting plate are connected by a slide cylinder. A probe fixing plate is located above the cylinder connecting plate, a transition plate is located in front of the cylinder connecting plate, and a precision probe is located on the probe fixing plate. The switching tip of the precision probe faces the transition plate and is connected to a connecting screw on the back of the transition plate. A probe piece is provided on the front of the transition plate, and the tail of the probe piece passes through a probe piece channel on the transition plate and is connected to the connecting screw. The head of the probe piece is adapted to the position of the connector housing. A spring baffle is also provided at the tail end of the sliding plate. The sliding plate is fixedly connected to the housing of the core test component. The fixed mechanism assembly is located below the moving mechanism assembly. The fixed mechanism assembly includes a base plate and a guide rail mechanism. The base plate is connected to the sliding plate through the guide rail mechanism. A moving slot is provided at the tail end of the base plate. The moving slot is adapted to the shape of the spring baffle. A spring limiting member is fixedly embedded on the surface of the base plate at the front end of the moving slot. A main spring structure is provided between the spring limiting member and the spring baffle, which achieves the effect of accurately detecting whether the terminal is inserted in place by the device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the terminal pull-back assembly fixture in an embodiment of the present invention;

[0019] Figure 2 This is an exploded view of the terminal pull-back assembly fixture in an embodiment of the present invention;

[0020] Figure 3This is a schematic diagram of the product fixing part in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the motion component section in an embodiment of the present invention;

[0022] Figure 5 This is an exploded view of the motion component section in an embodiment of the present invention;

[0023] Figure 6 This is an exploded view of the moving mechanism assembly in an embodiment of the present invention;

[0024] Figure 7 This is an exploded view of the fixed mechanism assembly in an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the status indication device in an embodiment of the present invention;

[0026] Reference numerals: Core test component 1, Electrical component box 2, Status indicator 30, Insertion confirmation indicator 301, Pull-out confirmation indicator 302, Alarm indicator 303, Product fixing part 3, Main cavity block 31, Main groove 311, Secondary groove 312, Connector housing 32, Locking mechanism 33, Cavity block sensing probe 34, Dotting device 35, Motion component part 4, Motion mechanism assembly 41, Sliding plate 411, Cylinder connecting plate 412, Probe fixing plate 4121, Slide table cylinder 413, Probe fixing plate adjustment device 413 1. Transition plate 414, Transition plate adjustment mechanism 4141, Precision probe 415, Connecting screw 416, Probe piece 417, Probe piece spring 418, Probe piece channel 419, Fixing mechanism assembly 42, Base plate 421, Guide rail mechanism 422, Moving slot 423, Core test component housing 5, Spring baffle 6, Spring limiting component 61, Main spring 62, Limiting plate 7, Limiting block 71, Limiting adjustment mechanism 72, Fiber optic sensor 8, Fiber optic sensor adjustment mechanism 81, Pin plate 9, Length adjusting screw 91, Reset device 10. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] In the description of this invention, it should be noted that the orientations or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0029] A terminal pull-back assembly fixture, such as Figure 1 and 4 As shown, the device includes a core test component 1, an electrical component box 2, and a status indicator 30. The core test component 1 is positioned above the electrical component box 2. The core test component 1 includes a product fixing part 3, a motion component part 4, and a core test component housing 5. The product fixing part 3 is located at the front end of the core test component housing 5, and the core test component housing 5 is positioned above the motion component part 4. The product fixing part 3 includes a main cavity block 31 and a connector plastic shell 32. The main cavity block 31 has a main groove 311 that matches the shape of the connector plastic shell 32. Locking mechanisms 33 are respectively provided on the left and right sides of the main cavity block 31; the motion assembly 4 includes a moving mechanism assembly 41 and a fixed mechanism assembly 42. The moving mechanism assembly 41 includes a sliding plate 411 and a cylinder connecting plate 412. The cylinder connecting plate 412 is arranged parallel above the sliding plate 411. The sliding plate 411 and the cylinder connecting plate 412 are connected by a slide cylinder 413. A probe fixing plate 4121 is provided above the cylinder connecting plate 412. A transition plate 414 is provided in front of the cylinder connecting plate 412. A precision probe is provided on the probe fixing plate 4121. Probe 415, the switching tip of the precision probe 415 faces the transition plate 414, and the switching tip of the precision probe 415 is connected to the connecting screw 416 provided on the back of the transition plate 414. A probe piece 417 is provided on the front of the transition plate 414, and the tail of the probe piece 417 passes through the probe piece channel 419 provided on the transition plate 414 and is connected to the connecting screw 416. The head of the probe piece 417 is adapted to the position of the connector housing 32. A spring baffle 6 is also provided at the tail end of the sliding plate 411. The sliding plate 411 and the core test group... The outer shell 5 is fixedly connected to the inner shell 5; the fixed mechanism assembly 42 is located below the moving mechanism assembly 41. The fixed mechanism assembly 42 includes a base plate 421 and a guide rail mechanism 422. The base plate 421 and the sliding plate 411 are connected through the guide rail mechanism 422. The tail of the base plate 421 is provided with a moving slot 423. The moving slot 423 is adapted to the shape of the spring baffle 6. A spring limiting member 61 is fixedly embedded on the surface of the base plate 421 at the front end of the moving slot 423. A main spring 62 is provided between the spring limiting member 61 and the spring baffle 6.

[0030] Specifically, the core testing component 1 of the device is used to detect whether the terminal and the plastic shell 32 are properly connected, and the status indicator device 30 displays the detection result. The product fixing part 3 is located at the front end of the core testing component housing 5 to fix the terminal, so that the moving component part 4 can detect the connection between the terminal and the plastic shell 32. The core testing component housing 5 is used to protect the components of the moving component part 4 from damage. The product fixing part 3 includes a main cavity block 31 and a connector plastic shell 32. The main cavity block 31 is provided with a main groove 311 that is suitable for the shape of the connector plastic shell 32, so that the connector plastic shell 32 can be inserted into the main groove 311. Locking mechanisms 33 are respectively provided on the left and right sides of the main cavity block 31, so as to lock and fix the connector plastic shell 32 after it is inserted into the main groove 311. The motion assembly 4 includes a moving mechanism assembly 41 and a stationary mechanism assembly 42. The movement of the moving mechanism assembly 41 and the stationary mechanism assembly 42 is used to detect whether the terminal and the plastic housing 32 are properly connected. The moving mechanism assembly 41 includes a sliding plate 411 and a cylinder connecting plate 412. The cylinder connecting plate 412 is arranged parallel above the sliding plate 411. The sliding plate 411 and the cylinder connecting plate 412 are connected by a slide cylinder 413. When the connector plastic housing 32 is inserted into the main groove 311, the slide cylinder 413 will drive the cylinder connecting plate 412 and the probe on it. The pin fixing plate 4121, transition plate 414, precision probe 415, and probe piece 417 move forward to accommodate the probe piece 417's displacement and insertion into the connector housing 32. When a terminal is inserted into the connector housing 32, the terminal presses the probe piece 417 backward, causing the connecting screw 416 fixed to the tail of the probe piece 417 to move backward. The connecting screw 416 then compresses the switch pin of the precision probe 415, triggering a signal to the status indicator 30 indicating that the terminal is now fully inserted. After the terminal is fully inserted, the tester pulls it outward. If the terminal is properly connected to the housing 32, the core test component housing 5 and the product fixing part 3 are fixed together by the locking mechanism of the connector housing 32 due to the fixed connection between the sliding plate 411 and the core test component housing 5.The terminal will drive the sliding plate 411 to move forward via the guide rail mechanism 422 on the base plate 421. This causes the precision probe 415 and probe piece 417 behind the switch pin to move outward as well. Simultaneously, the spring baffle 6 will move in conjunction with the sliding plate 411. At this time, the lower end of the spring baffle 6 will move within the moving slot 423. The spring baffle 6 and the spring limiting member 61 compress the main spring 62, generating a holding force opposite to the direction of the terminal pull wire. If the terminal is not properly inserted, it will not be able to resist the force of the main spring 62, and the terminal will detach from the connector housing 32. If the terminal is partially or completely detached from the housing 32, the reaction signal of the precision probe 415 will disappear, and the status indicator 30 will display "NG". If the reaction signal of the precision probe 415 remains, the status indicator 30 will display "Test successful". After the test is completed, the slide cylinder 413 will reset, and the locking mechanism 33 will open, causing the main spring to drive the spring baffle 6 and other components to reset.

[0031] As a preferred embodiment of the above, such as Figure 3 As shown, the locking mechanism 33 passes through the secondary grooves 312 located on the left and right sides of the main cavity block 31 and acts into the main groove 311; a cavity block sensing probe 34 is also provided below the main cavity block 31.

[0032] Specifically, the locking mechanism 33 passes through the secondary grooves 312 located on the left and right sides of the main cavity block 31 and acts into the main groove 311; a structure on the cavity block sensing probe 34 is also provided below the main cavity block 31, so that after the cavity block sensing probe 34 senses that the connector plastic shell 32 is inserted into the main groove 311, the locking mechanism 33 is composed of a locking baffle and a motor or cylinder, and the locking baffle passes through the secondary groove 312 to fix the connector plastic shell 32.

[0033] As a preferred embodiment of the above, such as Figure 3 As shown, a probe spring 418 is also provided between the probe piece 417 and the transition plate 414, a transition plate adjustment mechanism 4141 is also provided on the back of the transition plate 414, and a probe fixing plate adjustment device 4131 is also provided on the probe fixing plate 4121; the probe piece channel 419 is configured as a rectangular fixing groove.

[0034] Specifically, a probe spring 418 is provided between the probe piece 417 and the transition plate 414 to ensure that the probe piece 417 maintains a relatively accurate position and does not deviate from the appropriate position with the connector housing 32 due to vibration or other reasons, thus preventing it from being unable to be inserted into the connector housing 32. A transition plate adjustment mechanism 4141 is also provided on the back of the transition plate 414 to eliminate processing errors. If there are certain errors after related processing, the transition plate adjustment mechanism 4141 can be used to adjust the position to a certain extent. The probe piece channel 419 is set as a rectangular fixing groove to keep the probe piece 417 in a vertical state throughout the process cycle, thereby accommodating the insertion of the probe piece 417 into the connector housing 32.

[0035] As a preferred embodiment of the above, such as Figure 4 and 5 As shown, the spring baffle 6 has a T-shaped structure.

[0036] Specifically, the spring baffle 6 has a T-shaped structure, which allows it to move better within the moving slot 423 after its lower end moves. It then works with the spring limiter 61 to compress the main spring 62, generating a holding force opposite to the direction of the terminal pull wire. By selecting and calculating the displacement, the force of pulling the terminal is controlled at 10N + 0.5 (F spring force + the self-weight component of the mechanism and the rolling friction of the guide rail).

[0037] As a preferred embodiment of the above, such as Figure 2 As shown, a limiting plate 7 is also provided on one side of the sliding plate 411, and a limiting block 71 is also provided on the surface of the substrate 421 near the edge. The limiting block 71 is fixed to the substrate 421 by a limiting adjustment mechanism 72, and the positions of the limiting block 71 and the limiting plate 7 are adapted to each other.

[0038] Specifically, a limiting plate 7 is provided on one side of the sliding plate 411, and a limiting block 71 is provided on the surface of the substrate 421 near the edge. The limiting block 71 is fixed to the substrate 421 by a limiting adjustment mechanism 72. The structure in which the limiting block 71 and the limiting plate 7 are positioned to limit the relative movement of each component when the terminal is pulled to prevent damage caused by excessive movement. The length of this limit can be adjusted by the limiting adjustment mechanism 72.

[0039] As a preferred embodiment of the above, such as Figure 8 As shown, an optical fiber sensor 8 is also provided on the bottom surface of the substrate 421 near the edge. The optical fiber sensor 8 is fixed to the substrate 421 by an optical fiber sensor adjustment mechanism 81, and the position of the optical fiber sensor 8 is adapted to the position of the spring limiting member 61.

[0040] Specifically, an optical fiber sensor 8 is also provided on the bottom surface of the substrate 421 near the edge. The optical fiber sensor 8 is fixed to the substrate 421 by an optical fiber sensor adjustment mechanism 81. The position of the optical fiber sensor 8 is adapted to the position of the spring limiter 61. In the terminal pull-back test, the lower end of the spring baffle 6 will block the optical fiber sensor 8 after movement. By blocking the detection signal of the optical fiber sensor 8, it can be known that the terminal pull-back is completed. The status indicator device 30, the slide cylinder 413, and the locking mechanism 33 respond accordingly.

[0041] As a preferred embodiment of the above, such as Figure 8 As shown, the tail end of the substrate 421 is also provided with a pin plate 9, and the pin plate 9 is also provided with a length adjustment screw 91.

[0042] Specifically, a pin plate 9 is provided at the tail end of the substrate 421, and a length adjustment screw 91 is provided on the pin plate 9 to prevent the driving mechanism assembly 41 from moving excessively backward on the fixed mechanism assembly 42 when the terminal is inserted, thereby causing damage.

[0043] As a preferred embodiment of the above, such as Figure 1 As shown, the status indicator device 30 includes an insertion confirmation indicator 301, a pull-out confirmation indicator 302, and an alarm indicator 303.

[0044] Specifically, the status indicator 30 includes an insertion confirmation indicator 31, a pull-out confirmation indicator 32, and an alarm indicator 33, which respond to the insertion, pull-out, and NG of the terminal.

[0045] As a preferred embodiment of the above, such as Figure 1 As shown, the electrical component box 2 is also equipped with a reset device 10.

[0046] Specifically, a reset device 10 is also provided on the electrical component box 2 to lock after NG and to be opened by a key.

[0047] As a preferred embodiment of the above, such as Figure 1 As shown, a dotting device 35 is also provided below the main cavity block 31.

[0048] Specifically, a dotting device 35 is provided below the main cavity block 31 to mark the connector housing 32 with marks after the product has passed inspection.

[0049] Specifically, the system includes a core test component 1, an electrical component box 2, and a status indicator 30. The core test component 1 is positioned above the electrical component box 2. The core test component 1 includes a product fixing part 3, a moving component part 4, and a core test component housing 5. The product fixing part 3 is located at the front end of the core test component housing 5, and the core test component housing 5 is positioned above the moving component part 4. The product fixing part 3 includes a main cavity block 31 and a connector housing 32. The main cavity block 31 has a main groove 311 that matches the shape of the connector housing 32. The left side of the main cavity block 31... Locking mechanisms 33 are respectively provided on both sides of the right side; the motion assembly 4 includes a moving mechanism assembly 41 and a stationary mechanism assembly 42. The moving mechanism assembly 41 includes a sliding plate 411 and a cylinder connecting plate 412. The cylinder connecting plate 412 is arranged parallel above the sliding plate 411. The sliding plate 411 and the cylinder connecting plate 412 are connected by a slide cylinder 413. A probe fixing plate 4121 is provided above the cylinder connecting plate 412. A transition plate 414 is provided in front of the cylinder connecting plate 412. A precision probe 415 is provided on the probe fixing plate 4121. The precision probe 415 is switched on and off. The needle tip faces the transition plate 414. The switching needle tip of the precision probe 415 is connected to the connecting screw 416 on the back of the transition plate 414. A probe piece 417 is provided on the front of the transition plate 414. The tail of the probe piece 417 passes through the probe piece channel 419 provided on the transition plate 414 and is connected to the connecting screw 416. The head of the probe piece 417 is adapted to the position of the connector housing 32. A spring baffle 6 is also provided at the tail end of the sliding plate 411. The sliding plate 411 is fixedly connected to the core test component housing 5. The fixed mechanism assembly 42 is arranged on the moving... Below the mechanism assembly 41, the fixed mechanism assembly 42 includes a base plate 421 and a guide rail mechanism 422. The base plate 421 is connected to the sliding plate 411 through the guide rail mechanism 422. The tail of the base plate 421 is provided with a moving slot 423. The moving slot 423 is adapted to the shape of the spring baffle 6. A spring limiting member 61 is fixedly embedded on the surface of the base plate 421 at the front end of the moving slot 423. A main spring 62 is provided between the spring limiting member 61 and the spring baffle 6, which solves the problem in the prior art that it is impossible to accurately detect whether the terminal is inserted in place by means of a device.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A terminal pull-back assembly fixture, characterized in that... : It includes a core test component (1), an electrical component box (2), and a status indicator (30), wherein the core test component (1) is disposed above the electrical component box (2); The core test component (1) includes a product fixing part (3), a motion component part (4) and a core test component housing (5). The product fixing part (3) is disposed at the front end of the core test component housing (5), and the core test component housing (5) is disposed above the motion component part (4). The product fixing part (3) includes a main cavity block (31) and a connector plastic shell (32). The main cavity block (31) is provided with a main groove (311) that is suitable for the shape of the connector plastic shell (32). Locking mechanisms (33) are provided on the left and right sides of the main cavity block (31). The motion assembly (4) includes a moving mechanism assembly (41) and a stationary mechanism assembly (42). The moving mechanism assembly (41) includes a sliding plate (411) and a cylinder connecting plate (412). The cylinder connecting plate (412) is arranged parallel above the sliding plate (411). The sliding plate (411) and the cylinder connecting plate (412) are connected by a slide cylinder (413). A probe fixing plate (4121) is arranged above the cylinder connecting plate (412). A transition plate (414) is arranged in front of the cylinder connecting plate (412). A precision probe (415) is arranged on the probe fixing plate (4121). The precision probe (415) has... The switching needle faces the transition plate (414), and the switching needle of the precision probe (415) is connected to the connecting screw (416) provided on the back of the transition plate (414). The front of the transition plate (414) is provided with a probe piece (417), and the tail of the probe piece (417) passes through the probe piece channel (419) provided on the transition plate (414) and is connected to the connecting screw (416). The head of the probe piece (417) is adapted to the position of the connector plastic shell (32). The tail end of the sliding plate (411) is also provided with a spring baffle (6). The sliding plate (411) is fixedly connected to the core test component shell (5). The fixed mechanism assembly (42) is located below the moving mechanism assembly (41). The fixed mechanism assembly (42) includes a base plate (421) and a guide rail mechanism (422). The base plate (421) is connected to the sliding plate (411) through the guide rail mechanism (422). A moving slot (423) is provided at the tail of the base plate (421). The moving slot (423) is adapted to the shape of the spring baffle (6). A spring limiting member (61) is fixedly embedded on the surface of the base plate (421) at the front end of the moving slot (423). A main spring (62) is provided between the spring limiting member (61) and the spring baffle (6).

2. The terminal pull-back assembly fixture according to claim 1, characterized in that, The locking mechanism (33) passes through the secondary grooves (312) located on the left and right sides of the main cavity block (31) and acts into the main groove (311); a cavity block sensing probe (34) is also provided below the main cavity block (31).

3. The terminal pull-back assembly fixture according to claim 1, characterized in that, A probe spring (418) is also provided between the probe piece (417) and the transition plate (414). A transition plate adjustment mechanism (4141) is also provided on the back of the transition plate (414). A probe fixing plate adjustment device (4131) is also provided on the probe fixing plate (4121). The probe piece channel (419) is configured as a rectangular fixing groove.

4. The terminal pull-back assembly fixture according to claim 1, characterized in that, The spring baffle (6) has a T-shaped structure.

5. The terminal pull-back assembly fixture according to claim 1, characterized in that, A limiting plate (7) is also provided on one side of the sliding plate (411), and a limiting block (71) is also provided on the surface of the substrate (421) near the edge. The limiting block (71) is fixed to the substrate (421) by a limiting adjustment mechanism (72), and the positions of the limiting block (71) and the limiting plate (7) are adapted to each other.

6. The terminal pull-back assembly fixture according to claim 1, characterized in that, A fiber optic sensor (8) is also provided on the bottom surface of the substrate (421) near the edge. The fiber optic sensor (8) is fixed to the substrate (421) by a fiber optic sensor adjustment mechanism (81). The position of the fiber optic sensor (8) is adapted to the position of the spring limiting member (61).

7. The terminal pull-back assembly fixture according to claim 1, characterized in that, The base plate (421) is also provided with a pin plate (9) at its tail end, and the pin plate (9) is also provided with a length adjustment screw (91).

8. The terminal pull-back assembly fixture according to claim 1, characterized in that, The status indicator device (30) includes an insertion confirmation indicator (301), a pull-out confirmation indicator (302), and an alarm indicator (303).

9. The terminal pull-back assembly fixture according to claim 1, characterized in that, The electrical component box (2) is also provided with a reset device (10).

10. The terminal pull-back assembly fixture according to claim 2, characterized in that, A dotting device (35) is also provided below the main cavity block (31).

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